The MEAN WELL ELG-100-54B is a 100W AC/DC LED driver designed for a variety of LED lighting applications including street lights, architectural lighting, bay lighting, and flood lighting. It features a dual mode constant voltage and constant current output, operating on a wide input voltage range of 360VAC. The driver's high efficiency and fanless design allow for operation in environments with temperatures up to +90°C. The metal housing and IP65/IP67 ingress protection make it suitable for both indoor and outdoor installations. It offers various dimming methodologies and includes features like built-in active PFC and a typical lifetime exceeding 50,000 hours.